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Get Answers to all your Questions
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- #Multiple Choice Questions (MCQs)
Which one of the following sets of animals shares a four-chambered heart?
a. Amphibian, Reptiles, Birds
b. Crocodiles, Birds, Mammals
c. Crocodiles, Lizards, Turtles
d. Lizards, Mammals, Birds
Answers (1)
Ans-The answer is Option (b), Crocodiles, Birds, Mammals.
Explanation:
The heart is generally three-chambered in reptiles with the exception of crocodiles,which possess a four-chambered heart. The division in their heart is due to the incomplete interventricular septum, in ventricles. If we talk about heart in birds and
mammals, it is four-chambered, and there is a complete division of interventricular septum in ventricles. Whereas, amphibians hold a three-chambered heart in which the ventrid are not alienated; hence, two atria and one ventricle are present.
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